metaDigitise (version 1.0.1)

grandSD: grandSD

Description

Pooled standard deviation of a set of groups

Usage

grandSD(mean, sd, n, equal = FALSE)

Arguments

mean

Mean

sd

standard deviation

n

Sample size

equal

Logical: Whether to calculate pooled SD assuming groups have the same means (TRUE) or different means (FALSE)

Value

Returns vector of pooled mean

Examples

# NOT RUN {
grandSD(mean = 10, sd = 3, n = 40)
# }